About: http://webisa.webdatacommons.org/355798188

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Yes that would fit, although as OP i better stick to book canon for my argument.Where in the books was that suggestion that her mother was a slave - was it when a woman cried Melony?
http://www.w3.org/ns/prov#wasQuotedFrom	westeros.org